Components for a planar three–component velocimeter using Doppler global velocimetry (DGV) and PIV
نویسندگان
چکیده
منابع مشابه
Signal Processing Schemes for Doppler Global Velocimetry
Two schemes for processing signals obtained from the Doppler global velocimeter are described. The analog approach is a simple, real time method for obtaining an RS -170 video signal containing the normalized intensity image. Pseudo colors are added using a monochromatic frame grabber producing a standard NTSC video signal that can be monitored and/or recorded. The digita l approach is more com...
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A modified Planar Doppler Velocimetry (PDV) technique, two frequency PDV (2-PDV), is described that allows measurements of the velocity field over a plane defined by a laser light sheet using sequential illumination of the flow with two closely separated (~1GHz) frequencies of laser light. This allows a common-path imaging head to be used containing a single CCD camera instead of the usual cam...
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The work presented here describes a method that allows three component velocity measurements to be made, quickly and non-intrusively, across a plane in a flow defined by a laser light sheet. The method, two frequency planar Doppler Velocimetry (2ν-PDV) is a modification of the Planar Doppler Velocimetry (PDV) technique, using only a single CCD camera, and sequential illumination of the flow usi...
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ژورنال
عنوان ژورنال: PAMM
سال: 2002
ISSN: 1617-7061,1617-7061
DOI: 10.1002/1617-7061(200203)1:1<250::aid-pamm250>3.0.co;2-r